const plugins = []
if (process.env.NODE_ENV === 'production') {
    plugins.push(['transform-remove-console', { exclude: ['error', 'warn'] }])
}
plugins.push([
    'component',
    {
        libraryName: 'element-ui',
        styleLibraryName: 'theme-chalk',
    },
])
module.exports = {
    presets: [
        // https://github.com/vuejs/vue-cli/tree/master/packages/@vue/babel-preset-app
        '@vue/cli-plugin-babel/preset',
        [
            '@babel/preset-env',
            {
                useBuiltIns: 'usage',
                targets: '> 1%,last 2 versions,not ie<= 11',
                corejs: '3',
            },
        ],
    ],
    plugins,
    env: {
        development: {
            // babel-plugin-dynamic-import-node plugin only does one thing by converting all import() to require().
            // This plugin can significantly increase the speed of hot updates, when you have a large number of pages.
            // https://panjiachen.github.io/vue-element-admin-site/guide/advanced/lazy-loading.html
            plugins: ['dynamic-import-node'],
        },
    },
}
